ArrayTools (version 1.32.0)

preProcessGeneST: Proprocess genechip ST array

Description

Proprocess genechip ST array by taking the log2 of the expression value.

Usage

preProcessGeneST(object, offset = 1, rmControl = TRUE, output = FALSE, mydir = getwd())

Arguments

object

an ExpressionSet.

offset

The offset is added to the expression value to avoid log2(0) = -Inf.

rmControl

Setting rmControl = TRUE to remove control probes.

output

If output = TRUE, it will output the preprocessed data in the specified direcotry from the mydir argument.

mydir

specifed directory to contain the output

Value

an ExpressionSet

Examples

   data(eSetExample)
   processedData <- preProcessGeneST(eSetExample)